docs: def do_next(self, line):
          """Jump to the next entities (ontology, class or property) depending on context"""
          if not self.current:
              print("Please select an ontology first. E.g. use the 'ls ontologies' or 'get ontology <name>' commands.")
          elif self.currentEntity:
              g = self.current['graph']
              if self.currentEntity['type'] == 'class':
                  nextentity = g.nextClass(self.currentEntity['object'].uri)
                  self._select_class(str(nextentity.uri))
              elif self.currentEntity['type'] == 'property':
                  nextentity = g.nextProperty(self.currentEntity['object'].uri)
                  self._select_property(str(nextentity.uri))
              elif self.currentEntity['type'] == 'concept':
                  nextentity = g.nextConcept(self.currentEntity['object'].uri)
                  self._select_concept(str(nextentity.uri))
              else:
                  print("Not implemented")
          else:
              if len(self.all_ontologies) > 1:
                  nextonto = self._next_ontology()
                  self._load_ontology(nextonto)
              else:
                  self._print("Only one ontology available in repository.")